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Finding the Fourth Proportional to 90,492.96, 124,877.90 and 49,656.96

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Solution

The fourth proportional to 90,492.96, 124,877.90 and 49,656.96 is: 68,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,492.96 : 124,877.90 = 49,656.96 : x
  2. Step 2: Convert to fraction form
    90,492.96/124,877.90 = 49,656.96/x
  3. Step 3: Cross multiply
    90,492.96x = 124,877.90 × 49,656.96
  4. Step 4: Simplify right side
    90,492.96x = 6,201,057,009.33
  5. Step 5: Solve for x
    x = 6,201,057,009.33/90,492.96
  6. Step 6: Final answer
    x = 68,525.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.